One-Plane Glide-Symmetric Holey Structures for Stop-Band and Refraction Index Reconfiguration
1
Department of Signals, Systems and Radiocommunications, Universidad Politécnica de Madrid, 28040 Madrid, Spain
2
Division of Electromagnetic Engineering, KTH Royal Institute of Technology, 10044 Stockholm, Sweden
*
Author to whom correspondence should be addressed.
Symmetry 2019, 11(4), 495; https://doi.org/10.3390/sym11040495
Received: 1 March 2019 / Revised: 29 March 2019 / Accepted: 1 April 2019 / Published: 4 April 2019
(This article belongs to the Special Issue Higher Symmetries and Its Application in Microwave Technology, Antennas and Metamaterials)
Abstract
This work presents a new configuration to create glide-symmetric structures in a single plane, which facilitates fabrication and avoids alignment problems in the assembly process compared to traditional glide-symmetric structures based on several planes. The proposed structures can be printed on the metal face of a dielectric substrate, which acts as a support. The article includes a parametric study based on dispersion diagrams on the appearance of stop-bands and phase-shifting by breaking the symmetry. In addition, a procedure to regenerate symmetry is proposed that may be useful for reconfigurable devices. Finally, the measured and simulated S parameters of 10 × 10 unit-cell structures are presented to illustrate the attenuation in these stop-bands and the refractive index of the propagation modes. The attenuation obtained is greater than 30 dB in the stop-band for the symmetry-broken prototype. View Full-TextKeywords:
glide symmetry; single plane; stop-band; periodic structures; higher symmetries; refractive index
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Tamayo-Dominguez, A.; Fernandez-Gonzalez, J.-M.; Quevedo-Teruel, O. One-Plane Glide-Symmetric Holey Structures for Stop-Band and Refraction Index Reconfiguration. Symmetry 2019, 11, 495.
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